A and B can do a piece of work in 8 days . B alone can do it in 12 days in how many days can A do it alone
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- a+b can do in 8days
- b alone can do in 12 days
- 12,8lcm 24
- 12 b--------- efficiency ofb=24/12=2
- 24
- 8(a+b)------ efficiency of a+b=24/8=3
efficiency of a =a+b-b=
3-2=1=a efficiency
a cando it in 24/1 days that is in 24 days
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